When I usually wear clothes with elastic belts, how to maintain the elastic bands to prolong its lifespan?

If you wear it inside, the inner lining of the jacket should be smooth and not rubbing.
If you carry hard objects such as pens, key cases, mobile phones, etc., these hard objects should be placed in the jacket pocket, not the inner pocket, so as to avoid friction and pilling.

Try to reduce the friction between the elastic band and hard objects and hooks when wearing it outside. It is best not to wear clothes for too long. Change it every week to restore its elasticity and prevent it from fiber worn or damage.